US Bridges

Sth 64 over Br Black River

Good

Taylor County, Wisconsin · 0.9M E JCT Cth E to N · Structure no. B60006900000000

Built
1994
31 years old
Condition
Good
inspected July 2021
Type
Culvert
Concrete Continuous
Length
26 ft
2 main spans
Daily traffic
1,700
2023 count
Owner
State
State Highway Agency

About this bridge

Sth 64 over Br Black River is a concrete continuous culvert carrying Sth 64 over Br Black River in Taylor County, Wisconsin. It was built in 1994, so it is 31 years old, younger than the Wisconsin average of 40.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 1,700 vehicles a day, roughly 4% of them trucks, projected to reach 2,040 by 2039. The structure is 26 ft (8 m) long. If it were closed, the detour would be 26.7 mi (43 km).

CarriesSth 64
CrossesBr Black River
Location0.9M E JCT Cth E to N
RouteState Highway 64
Coordinates45.13957, -90.41931
Functional classRural Major Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection8 Very GoodNo problems noted.
Culvert7 GoodSome minor problems.
Last inspectionJuly 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.4 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length26 ft (8 m)
Longest span12 ft (3.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,700 (2023)
Projected traffic2,040 by 2039
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed26.7 mi (43 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Sth 64 over Br Black River built?

It was built in 1994, making it 31 years old in 2025.

What condition is Sth 64 over Br Black River in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in July 2021.

How much traffic does Sth 64 over Br Black River carry?

About 1,700 vehicles per day (2023 count), of which roughly 4% are trucks.

How long is Sth 64 over Br Black River?

The structure is 26 ft (8 m) long with a longest span of 12 ft (3.7 m).

Who owns Sth 64 over Br Black River?

It is owned by the State Highway Agency.